/**
* Copyright (c) 2011-2014, OpenIoT
*
* This file is part of OpenIoT.
*
* OpenIoT is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, version 3 of the License.
*
* OpenIoT is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with OpenIoT. If not, see <http://www.gnu.org/licenses/>.
*
* Contact: OpenIoT mailto: info@openiot.eu
*/
package org.openiot.cupus.common;
import java.util.Set;
import java.util.UUID;
import org.openiot.cupus.artefact.ActiveSubscription;
import org.openiot.cupus.artefact.Announcement;
import org.openiot.cupus.artefact.Publication;
import org.openiot.cupus.artefact.Subscription;
import org.openiot.cupus.artefact.TripletAnnouncement;
/**
* Interface of a data structure that is holding the active subscriptions and
* facilitating the matching operation.
*
* @author Eugen
*
*/
public interface SubscriptionDataStructure {
public static final int ERROR_ADDING_SUB = -1;
public static final int SUB_NOT_ADDED = 0;
public static final int NEW_TREE_ROOT = 1;
public static final int SUB_ADDED = 2;
public static final int NEW_TREE_CREATED = 3;
public static final int SUB_ALREADY_IN_FOREST = 4;
public static final int SUB_NOT_REMOVED = 0;
public static final int SUB_REMOVED = 2;
int addSubscription(ActiveSubscription subscription);
Set<UUID> findMatchingSubscribers(Publication publication);
Set<Subscription> findMatchingSubscriptions(Announcement announcement);
int removeSubscription(ActiveSubscription subscription);
int deleteSubscriber(UUID subscriberID);
void removeExpiredSubscriptions();
}